Furnace



Feb.2o,1923. 1,446,193

l J. LONDEAU FURNACE JaH/v mmm Patented Feb. 20, 1923.

irs.y ster .TOI-IN LONDEAU, OF CDRNVIALL, ONTARIC),y CANADA.

FURNACE.

Application filed January `25, 1922. Serial No. 531,750.

To al?, whom t may concern:

Be it known that l,- Joi-IN" Loivnnan, a subject of the King of Great Britain, and resident of the town of Cornwall, in the Province of Ontario and Dominion of Canada, have invented certain new and useful improvements :in Furnaces, of which the following is a specification. V

This invention relates to improvements in furnaces, and the objects of the inven tion are to effectively utilize the heat units of the products of combustion and render the same available for heating purposes with air or otherwise, to .so absorb vthe heat units from the products of combustion that the said products of combustion will pass to the uptake or smoke pipel at the reduced temperature just su'liicient to give a proper air circulation through the furnace to ensure a supply of the necessary amount `of oxygen to give good combustion.

Further objects are to provide an iniproved fuel saving device over those at present in use, and to utilize the said device as a ventilator, to permit of readily cleaning and inspecting the several parts, and generally to adapt the said several parts to better perform the functions required of them.y

Tith these and other objects in view, the invention consists essentially of the ims proved construction particularly described and set forth in the following specification and accompanying drawing forming part of the application.

In the drawing:

Figure l is a side elevation partly in section of my improved furnace with casing cut away.

Figure 2 is a vertical section through my improved device showing 'top of heater with opening therein.

Like characters of reference refer to like parts in the several figures.

Referring to the drawing:

A represents my improved furnace, comprising an outer casing 19, within which and in spaced relationship thereto is arranged a cylindrical heater 10 with feed and discharge openings 13 and 14 and in the top opening 17a, iixedly secured on the heater 10. Also within the casing 19 and by means of a ring member 11, are outer and inner spaced chambers 15 and 16 respectively.

l`The outer chamber 15 is provided with yan opening 17 registering with the opening 17 in the heater top, whereby communication is providedbetween the chamber 15 and the heater. Registering with this opening 17 is a heat distributing chamber 18 projecting into the inner chamber 16 and having an inner closed end. 1

19 is the outer casing in spaced relationship to the member 1() and designed to auxiliary heat distributing.conduits extending from the top of the chamber 16 into the conduits 22 and 23 and designed to conve-y thereinto the superheated air from the top of the chamber 16.

26 is an air inlet conduit extending between the'cen'tral conduit 17 and the inner wall ci' the chamber 16, the air being discharged from the chamber 16 through the conduits 22 and 23, and 211 and 25.

In a furnace of this construction, the products of combustion pass from the heater 12 upwardly through the opening 17which islocated above the central opening'in the heater 12, and part of the products of com bustion enter the conduit 18 while another stream passes around the annular passage way and up around the inner chamber 16 and is dischargedithrough the smokeipipe 21.

- Air is meantime being circulated through the pipe 26 into the chamber 16, and this air on its passage through the said chamber extracts heat units from the products of combustion which flow around the `outer wall of said chamber.I and the heated air is delivered through the pipe 22 and pipe 23 to the room or rooms being heated, being previously superheated by the heated air from the auxiliary conduits 24 and 25.

The major part of the heat units enter the chamber 18 and are retained for a sufciently long time in contact with the wall of the chamber 16 to deliver their heat units to `said chamber, and these heat units are picked up by the air passing through the chamber in the manner above described.

In this way it will be seen that the heat units which formerly passed with the prod ucts of combustion into the smoke pipe are delivered and absorbed by the circulating air to heatthe house in which the heater is installed.

A proper circulation of. air in the household'. is also l'obtained owing to :the arrangement of the pipe 26.

As many changes could be madein the above construction, and man3Tv apparently' Widely different embodiments of my inventionA within the scope of the claims, con! structed Without departing fromthe spirit or scope thereof, it is intended that all matter contained in. the accompvanying specification,v andl drawing sha-,ll be interpreted as illustrative and not in a limiting sense; That I clainicas myinvention is: l. 'A furnace of the class described, com

prisin'g v an .outer casing and a heater in spaced relationship, the heater having an and yauxiliary heat. distributing conduitsv connectinggthe top of the -inner chamber With the aforementioned heat distributing conduits. i

2. Ayfurnace of the class described comprising a casing, a heater Within the casing and in spaced relationship thereto, andy outer and an inner heating chamber in spaced relationship to one another arranged on the top of the heater, an opening in the outer heating chamber to receive the products of combustion'from the heater, a supern heating chamber projecting into the inner heating chamber and having a closed end, the outer end of said superheating chamber being open and designed to register with the opening in the outer heating chamber, conduits communicating with the inner heating chamber, heat` distributing means for said conduits, super-heat distributing .means connecting the inner heating chamber with the aforementioned distributing means, an air intake designed `to forni ventilating means for the inner heating chamber, and a smoke conduitconnected with :the outer heating chamber.

3. A furnace of the class described` comprising in combination an outer casing,.a heater in said casing having an opening in the top,spaced heat distributing( chambers communicating With said heater,`the inner of said chambers being formed ywith an inwardly projecting chamber ending. in a closed end, the open end of said projectingchamber being designed to register with an opening` in the outer of saidnheat distributing chambers, heat conduits for the inner chambers, and auxiliaryheat conduits for said chamber communicating' with the aforementioned conduits whereby the heated air is discharged thereinto.A

In Witness whereof I have hereuntor set my hand.

JOHN LONDEAU. 

